Brush head for mounting in a dental instrument



FIG. 1 is a top plan view of a brush head for mounting in a dental instrument showing my new design;

FIG. 2 is a side elevational view thereof, the sides opposite and adjacent being identical in appearance; and

FIG. 3 is a bottom plan view thereof. 

The ornamental design for a brush head for mounting in a dental instrument, as shown and described. 